61289820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17921}}^1$

素因数の和:17955

約数の個数: 72

約数和(自身を含む): 195708240

約数和(自身を除く): 134418420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 17921, 35842, 53763, 71684, 89605, 107526, 161289, 179210, 215052, 268815, 322578, 340499, 358420, 537630, 645156, 680998, 806445, 1021497, 1075260, 1361996, 1612890, 1702495, 2042994, 3064491, 3225780, 3404990, 4085988, 5107485, 6128982, 6809980, 10214970, 12257964, 15322455, 20429940, 30644910, 61289820]

約数ペア:

[(1, 61289820), (2, 30644910), (3, 20429940), (4, 15322455), (5, 12257964), (6, 10214970), (9, 6809980), (10, 6128982), (12, 5107485), (15, 4085988), (18, 3404990), (19, 3225780), (20, 3064491), (30, 2042994), (36, 1702495), (38, 1612890), (45, 1361996), (57, 1075260), (60, 1021497), (76, 806445), (90, 680998), (95, 645156), (114, 537630), (171, 358420), (180, 340499), (190, 322578), (228, 268815), (285, 215052), (342, 179210), (380, 161289), (570, 107526), (684, 89605), (855, 71684), (1140, 53763), (1710, 35842), (3420, 17921)]